Home / 12,522.20-17,277.80-7,485.58

Finding the Fourth Proportional to 12,522.20, 17,277.80 and 7,485.58

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Solution

The fourth proportional to 12,522.20, 17,277.80 and 7,485.58 is: 10,328.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,522.20 : 17,277.80 = 7,485.58 : x
  2. Step 2: Convert to fraction form
    12,522.20/17,277.80 = 7,485.58/x
  3. Step 3: Cross multiply
    12,522.20x = 17,277.80 × 7,485.58
  4. Step 4: Simplify right side
    12,522.20x = 129,334,354.12
  5. Step 5: Solve for x
    x = 129,334,354.12/12,522.20
  6. Step 6: Final answer
    x = 10,328.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.